Milling machine



FIG. 1 is a front perspective view of the vertical milling machine;

FIG. 2 is a is a front elevation view of the vertical milling machine;

FIG. 3 is a right side elevation view of the vertical milling machine;

FIG. 4 is a rear elevation view of the vertical milling machine;

FIG. 5 is a left side elevation view of the vertical milling machine; and,

FIG. 6 is a top plan view of the vertical milling machine.

The broken lines in FIGS. 1–6 are included for the purpose of illustrating the environment of the milling machine and form no part of the claimed design. 

The ornamental design for a milling machine, as shown and described. 